package com.adee.nowcoder.huawei;

import java.util.Arrays;
import java.util.List;

public class T099 {
    public static void main(String[] args) {
        String[] arr = {"hello","world"};
        List<String> list = Arrays.asList(arr);
        System.out.println(String.join(",", arr));
        System.out.println(String.join(",", list));


    }
}
